Gas apparatus



MANVILLE & BLACKMAN.

Gas Retort.

No. 20,438. Patented June. 1, 18585 N. Pcvzns Photo-Ll homp tn Washington, \1 c UNITED STATES PATENT OFFICE.

E. J. MANVILLE AND S. G. BLACKMAN, OF \VATERBURY, CONNECTICUT.

GAS APPARATUS.

To all whom it may concern:

Be it known that we, E. J. MANvILLn and SAMUEL G. BLACKMAN, of Vaterbury, in the county of New Haven and State of Connecticut, have invented a new and Improved Portable Apparatus for Generating and Condensing Gas; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, Figure 1 being a view of the front side of said apparatus; Fig. 2, a view of the rear side of the same; Fig. 3, a vertical section in a line passing through the center thereof, and Figs. 4 and 5 are views of detached portions of said apparatus.

Similar letters indicate like parts in each drawing.

The cylinder 0, and the grating 91, of the the chamber of our gas-generating apparatus, do not differ essentially from the corresponding parts of an ordinary cylinder stove. The retort a, is combined wit-h the cover m, of the cylinder 0, in such a manner as to form a channel 1, immediately around the mouth of said retort. The periphery of the cover Z, of the retort, projects outwardly and terminates in a descending fianch which enters the aforesaid channel a, and is there embraced on both sides by a soft metal pack ing, which is poured into said channel. just before the cover is placed upon the retort, and by which means a perfectly air-tight joint is produced between the two.

The lower portion 1, of the oil induction tube, is closely and permanently secured in a central aperture in the cover Z, of the retort. A cup 2," which rests on the bottom of the retort, is secured to the lower end of the tube 7", in such amanner that the oily matter which descends in said tube will flow freely into the said cup 6. A cup .9, loosely embraces the tube 1", and rests upon the surface of the oily matter which may enter the cup 25. It will therefore be perceived that the cups 8, and t, form false bottoms to the retort a, and must be removed therefrom whenever the cover thereof is removed, and consequently, the said cups will prevent the lodgment of impure deposits upon the bottom of the retort, which is a very important consideration.

The induction oil pipe is, has the usual form of curvature or trap to prevent the escape of gas from the retort.

To concentrate the action of the fire upon the bottom and sides of the retort, an in verted funnel-shaped casing b, is combined with the inner surface of the fire chamber; which casing, at its upper extremity, closely embraces the sides of the retort on all sides save the front, where an opening is made to allow the ascending products of combustion to escape and pass around the outer surface of said casing to the smoke-pipe 7), which issues from the rear side of the cylinder 0, of the fire chamber.

The cylinder 0, rests upon the top of the condensing chamber (Z, which is supplied with the requisite quantity of water to condense the unctuous portions of the gas generated in the retort of the apparatus. From the under side of the top of the condenser (Z, there descends a cylindrical flanch which terminates in a series of teeth that pass a short distance beneath the surface of the water in said condenser, as shown in Fig. 3. The gas-conducting tubes 6, 0, pass from opposite sides of the retort out through the sides of the cylinder 0, and then descend vertically and enter the top of the condenser, outside of the toothed-flanch f. The gas passes from the extreme outer portion of the condensing chamber into the central portion thereof within the flanch f, through the small openings between the teeth of said i fianch, and it then enters the gaseduction pipe j, to be conducted to the gasometer or to any other desired inclosure. The gas j may be withdrawn directly from the outer portion of the condensing chamber through the pipe 2', whenever it may be desirable so to do. l ater is introduced into and discharged from the condensing chamber, by means of the pipes g, h, arranged in any suitable I manner. Having thus fully described our improved 5 portable apparatus for generating and condensing gas, what we claim therein as our invention and desire to secure by Letters Patent, is

1. The peculiar combination and arrangement of the fire-chamber, the retort, and the condensing chamber, substantially as herein set forth.

2. e also claim combining the descending toothed fianch f, with the cover of the gas generating and condensing apparatus, condensing chamber for the purpose of disigned and witnessed this 19th day of April 10 viding said chamber into two compartments 1858.

which communicate with each other by ELI J. MANVILLE.

means of a series of small induction aper- SAML. G. BLACKMAN. tures at the surface water, substantially as Witnesses: herein set forth. ALBERT BURRETT,

The above specification of our improved S. B. HOPKINS. 

